Our rig mat is constructed with outer frames of steel channel, incorporating smooth radiuses on all edges, and unique crane lifting eyes built into the corners of the frame. The heart of our system is our full length Douglas fir tongue and grooved laminated glulam beams. Our glulam beams are first glued and pressed vertically into billets which are then each tongue and grooved and pressed horizontally into the finished glulam beam. The combination of longitudinal steel rails and the full length glulam beams gives our rig mat more than twice the bridge strength of the traditional rig mat marketed today, all with competitive pricing and many years of durability.